package ShenBlueMain;

import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import ShenBlueTool.isString;

/**
 * Servlet Filter implementation class SessionLimit
 */
@WebFilter(urlPatterns= {
		"/userInfoService/*",
		"/js/userInfoService/*",
		"/imp/*"
})
public class UserInfoServiceLimit implements Filter {

    /**
     * Default constructor. 
     */
    public UserInfoServiceLimit() {
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see Filter#destroy()
	 */
	public void destroy() {
		// TODO Auto-generated method stub
	}

	/**
	 * @see Filter#doFilter(ServletRequest, ServletResponse, FilterChain)
	 */
	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
		
		HttpServletRequest req=(HttpServletRequest)request;
		HttpServletResponse res=(HttpServletResponse) response;
		HttpSession session=req.getSession();
		Object user_id=session.getAttribute("User_id");
		isString isString = new isString();
		if(user_id==null) {
			res.sendRedirect(req.getContextPath()+"/login.html");
			return;
		}else {
			Object user_name=session.getAttribute("User_name");
			if(user_name==null||user_name.toString().length()==0) {
				String url=req.getRequestURI();
				String path=req.getContextPath();
				if(url.equals(path+"/userInfoService/updateUserInfo.html")||url.equals(path+"/userInfoService/Nav.html")||url.equals(path+"/js/userInfoService/updateUserInfo.js")||url.equals(path+"/imp/User_Msg_Json")||url.equals(path+"/imp/ModifyUser")) {
					chain.doFilter(request, response);
					return;
				}else {
					res.sendRedirect(path+"/userInfoService/updateUserInfo.html");
					return;
				}
			}
		}
		
		chain.doFilter(request, response);
	}

	/**
	 * @see Filter#init(FilterConfig)
	 */
	public void init(FilterConfig fConfig) throws ServletException {
		// TODO Auto-generated method stub
	}

}
